We started the chapter on waves, and I brought in this gadget to show the class. I got the idea from an AM radio transmitter I built last year, which worked on the same idea. (Replace the laser with a 1MHz oscillator, and it turns into an AM RF transmitter!)
We started the chapter on waves, and I brought in this gadget to show the class. I got the idea from an AM radio transmitter I built last year, which worked on the same idea. (Replace the laser with a 1MHz oscillator, and it turns into an AM RF transmitter!)